80939950475904 has 512 divisors, whose sum is σ = 266506145740800. Its totient is φ = 24015340339200.

The previous prime is 80939950475869. The next prime is 80939950475959. The reversal of 80939950475904 is 40957405993908.

80939950475904 is a `hidden beast` number, since 80 + 9 + 39 + 9 + 504 + 7 + 5 + 9 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 391264402 + ... + 391471214.

It is an arithmetic number, because the mean of its divisors is an integer number (520519815900).

Almost surely, 2^{80939950475904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80939950475904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133253072870400).

80939950475904 is an abundant number, since it is smaller than the sum of its proper divisors (185566195264896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80939950475904 is a wasteful number, since it uses less digits than its factorization.

80939950475904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207161 (or 207143 counting only the distinct ones).

The product of its (nonzero) digits is 440899200, while the sum is 72.

The spelling of 80939950475904 in words is "eighty trillion, nine hundred thirty-nine billion, nine hundred fifty million, four hundred seventy-five thousand, nine hundred four".